El resultado de la multiplicación
1 answer:
You might be interested in
Answer:
x=45
Step-by-step explanation:
a=135
x+135=180
x=180-135
x=45
Answer:
B) TS = -6.51, p-value = 0.0000
Step-by-step explanation:
Sample size, n = 39
μ = 7.5 cm
Null hypothesis, H₀ = 7.5 cm
(I.e. Average height of youngest child is 7.5 cm)
Alternative hypothesis, (The youngest child's age is underestimated by 7.5 cm)
Standard deviation,
In order to be able to reject the null hypothesis,
the formula for the test statistic:
t = -6.51
P - value
P(x < 7.5) = P(z < -6.51)
Checking the p-value for z < -6.51 in the normal distribution table
P(z < -6.51) = 0.0000
p - value = 0.0000
Answer:
see below
Step-by-step explanation:
2d+21 ≤11
Subtract 21
2d+21-21 ≤11 -21
2d ≤-10
Divide by 2
2d/2 ≤-10/2
d≤-5
